<template>
  <div class="login-container">
    <el-form
      ref="loginFormRef"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">知识管理分享系统</h3>
      </div>
      <el-form-item prop="username">
        <el-input
          :prefix-icon="UserFilled"
          ref="username"
          v-model="loginForm.username"
          placeholder="请输入用户名"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          :prefix-icon="Lock"
          :key="passwordType"
          ref="passwordRef"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          show-password
          auto-complete="on"
          @keyup.enter="handleLogin"
        />
        <!-- <span class="show-pwd" @click="showPwd">
          <i :class="passwordType === 'password' ? 'el-icon-s-help' : 'el-icon-question'" />
        </span> -->
      </el-form-item>

      <el-button
        :loading="loading"
        type="primary"
        style="width: 100%; margin-bottom: 30px"
        @click.prevent="handleLogin"
        >登录</el-button
      >

      <!-- <div class="tips">
        <span style="margin-right:20px;">username: admin</span>
        <span> password: any</span>
      </div> -->
    </el-form>
  </div>
</template>

<script setup>
import { validUsername } from 'utils/validate'
import { watchEffect, ref } from 'vue'
import { useRoute, useRouter } from 'vue-router'
import { useStore } from 'vuex'
import { UserFilled, Lock } from '@element-plus/icons-vue'

import { ElMessage, ElIcon, ElInput } from 'element-plus'
import { login } from '@/api/login.js'
import { reactive } from 'vue'

const loginFormRef = ref(null)
const passwordRef = ref(null)
const store = useStore()

const validateUsername = (rule, value, callback) => {
  if (!validUsername(value)) {
    callback(new Error('请输入正确的账号'))
  } else {
    callback()
  }
}

const validatePassword = (rule, value, callback) => {
  if (value.length < 6) {
    callback(new Error('密码不能少于6位'))
  } else {
    callback()
  }
}

const loginForm = reactive({
  username: '',
  password: ''
})

const loginRules = {
  username: [{ required: true, trigger: 'blur', validator: validateUsername }],
  password: [{ required: true, trigger: 'blur', validator: validatePassword }]
}

let loading = false
let passwordType = ref('password')
let redirect = undefined

const handler = (route) => {
  redirect = route.query && route.query.redirect
}

const route = useRoute()
const router = useRouter()

watchEffect(route, handler(route))

function showPwd() {
  if (passwordType.value === 'password') {
    passwordType.value = ''
  } else {
    passwordType.value = 'password'
  }
}
function handleLogin() {
  loginFormRef.value.validate((valid) => {
    console.log(valid, '验证')
    if (valid) {
      // loading = true;
      const { username, password } = loginForm
      login({ username, password })
        .then((data) => {
          console.log(data, 'login data')
          if (data.code === 200) {
            ElMessage({
              message: data.msg,
              type: 'success',
              duration: 2000
            })
            localStorage.setItem('token', data.data.token)
            localStorage.setItem('username', data.data.user.name)
            router.push({ path: '/home' })
          } else {
            ElMessage({
              message: data.msg,
              type: 'error',
              duration: 2000
            })
          }
        })
        .catch((errorMsg) => {
          console.log(errorMsg, 'error')
          ElMessage({
            message: errorMsg,
            type: 'error',
            duration: 2000
          })
        })

      // 暂时使用mock数据
      // getToken("/api/login").then((data) => {
      //   console.log(data.data, "loginForm --- data");
      //   if (data.code == 0) {
      //     router.push("/");
      //   }
      // });

      // store.dispatch("user/login", loginForm)
      // .then(() => {
      //   router.push({ path: redirect || "/" });
      //   loading = false;
      // })
      // .catch(() => {
      //   loading = false;
      // });
    } else {
      console.log('error submit!!')
      return false
    }
  })
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

// @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
//   .login-container .el-input input {
//     color: $cursor;
//   }
// }

/* reset element-ui css */
.login-container {
  // .el-input {
  //   display: inline-block;
  //   height: 47px;
  //   width: 85%;

  //   input {
  //     background: transparent;
  //     border: 0px;
  //     -webkit-appearance: none;
  //     border-radius: 0px;
  //     padding: 12px 5px 12px 15px;
  //     color: $light_gray;
  //     height: 47px;
  //     caret-color: $cursor;

  //     &:-webkit-autofill {
  //       box-shadow: 0 0 0px 1000px $bg inset !important;
  //       -webkit-text-fill-color: $cursor !important;
  //     }
  //   }
  // }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

// :deep(.el-form-item__error) {
//   color: red;
// }

.login-container {
  min-height: 100vh;
  width: 100%;
  // background-color: $bg;
  background: url('../../assets/images/login_bg.png') no-repeat;
  background-size: 100% 100%;
  overflow: hidden;

  .login-form {
    position: relative;
    top: 140px;
    width: 520px;
    max-width: 100%;
    padding: 20px 35px 0;
    margin: 0 auto;
    overflow: hidden;
    background-color: rgb(0, 0, 0, .3);
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
